Question about 1999 Oldsmobile Intrigue

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Why won't my car heater shut off

Why does my car heater come on only on the highest dial & will not shut off when dial is turned off? heater is still going when car is shut off, so I have to losen up a cable on the battery & reconnect it when I need to use the car again becuase the heater will come on a few minutes after reconnecting the battery.

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Sounds like you are having two problems the ignition switch supplies power to the heater fan switch unless the power stays on until keys are pulled and door is opened if so replace door switch. if not replace ignition switch. the other problem high medium low settings would be in the fan motor resistor located by fan motor in vent housing.

Posted on Feb 03, 2010

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You have a short in the switch or resistor pack. replace the switch

Posted on Feb 03, 2010

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